JPS63272709A - Conveying device for solid - Google Patents

Abstract

PURPOSE:To suppress polishing of a substance to be conveyed, by a method wherein, in a conveying device for tablets and the like, conveyance is effected in association between a brush and a helical coil, and an air flow is fed in a conveyance cylinder. CONSTITUTION:A rotation brush 5 is rotated by a motor 5c, and a sucking device 9b is brought into an ON-state. An on-off cover 11 is attracted and closed, air is sucked through a charge hopper 1c, and an air flow flowing in an upward direction is produced in a cylinder 1. A circumferential force is exerted on solid in the hopper 1c by means of the rotation brush 5, the solid is guided to the side of a helical coil 3 and is conveyed to a discharge port 1b. Simultaneously, a conveyance force is exerted on a substance to be conveyed by means of an air flow. Thus, the substance to be conveyed is smoothly conveyed, and contact between the brush 5 and the conical coil 3 is relieved. This constitution enables reduction of polishing of the substance to be conveyed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a conveying device for solid objects such as tablets and capsules.

[Prior art]

In general, tablets, capsules, etc. are easily damaged and their surfaces are easily scratched, so special consideration is required when transporting them.

For this reason, the applicant developed a conveying device for tablets, capsules, etc. that does not damage the tablets, capsules, etc. and increases the surface gloss during conveyance, and filed an application for the same (Japanese Patent Publication No. 56-3291 (Japanese Unexamined Patent Application Publication No. 53/1989)). -61884)).

This conveying device is composed of a helical coil that is wound in close contact with the inner wall of a cylindrical hollow tube over the entire length of the tube, and has an inlet at one end and an outlet at the other end.
Furthermore, a rotatable black is arranged inside the conveying tube along the entire length of the helical coil, lightly touching the inner diameter of the helical coil, and the black is rotated by a drive device connected to one end of the rotating shaft. This is a conveying device for tablets, capsules, etc., which is configured to convey tablets, capsules, etc., introduced from the inside of a conveying pipe, and discharged from a spout.

[Problem that the invention seeks to solve]

However, in the above-mentioned conventional solid material conveying device, the tablets, etc. may be ground more than necessary due to contact between the platter and the helical coil. In this case, the weight of the capsules, tablets, etc. acts against the conveyance force due to the cooperative action of the brush and helical fill, and not only does the tablet, etc. become unnecessarily small, but also the powder produced by polishing is wasted. There was a problem with that.

The present invention has been made in view of the above-mentioned points, and by adding the conveying force generated by the air flow to the conveying force generated by the cooperation between the platter and the helical coil, it is possible to create a solid state in which the tablets, etc., are not ground more than necessary. The purpose of the present invention is to provide a device for transporting objects.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a solid material conveying device inside a cylindrical tube having an input port for introducing the solid material at one end and a discharge port for discharging the solid material at the other end. , a helical coil is arranged tightly wound on the inner wall over its entire length, and a rotary brush in which brush fibers are implanted radially on a rod-shaped shaft member is arranged so as to be rotatable, and by the rotation of the rotary brush, In a solid material conveying device for conveying solid matter input from an input port toward a discharge port, an air flow generating device is provided in a cylinder of the solid material conveying device to generate an air flow in the same direction as the solid material conveying direction. It was configured as follows.

[Effect]

If the solid material conveying device is configured as described above, an air flow is provided in the direction of conveying the solid material in the cylinder, and the conveying force due to this air flow is provided by the cooperative action of the brush and the helical coil. In addition to the conveying force, the solid material is easily transported, the solid material is not polished more than necessary, and the tablets etc. are not made unnecessarily small.
Chemical powder generated by polishing can be greatly reduced.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a sectional view showing the overall structure of a solid material conveying device according to this embodiment.

The solid material conveying device according to this embodiment has input ports 1a at both ends.
A helical coil 3 and a rotating brush 5 are inserted into a cylindrical tube 1 having a discharge port 1b and a discharge port 1b.
A perforated cylinder 71 and an outer cylinder 73 enclosing the perforated cylinder 71 are provided on the discharge pipe 7 protruding from the perforated cylinder 7. A suction device 9 for sucking air from inside the cylinder 1 is attached to the outer cylinder 73, 7
An opening/closing lid 11 is provided at one end opening.

Next, each component of this embodiment will be explained in detail.

A cylindrical tube 1 is arranged diagonally, and near its lower end is formed an input port 1a into which solid objects such as tablets and capsules are input, and near its upper end is formed to discharge solid objects such as tablets and capsules. A discharge port 1b is formed. Inlet port 1
A charging hopper IC is attached to a to facilitate loading solid materials such as tablets and capsules. Outlet 1
A discharge pipe 7 protruding from the discharge port 1b is attached to the discharge port 1b. Bearings ld, ld are attached to the upper and lower ends of this cylinder 1, which seal both ends of the core portion 1 and support a shaft member 5a of a rotating brush 5, which will be described below.

The helical coil 3 is fixed to the core part 1 in close contact with the inner wall of the cylinder 1. The cross-sectional shape of this helical coil 3, as shown in FIGS. 2(a), (b), and (C), is such that it can be brought into close contact with the inner wall of the cylinder 1 and can transport solids by cooperation with the brush. It may be of any shape, such as circular or chevron-shaped.

As shown in FIG. 3, the rotating brush 5 has a rod-shaped shaft member 5a.
A large number of brush fibers 5b are installed radially over the entire length of the helical coil 3, and its outer diameter is approximately equal to the inner diameter of the helical coil 3. A motor 5c for rotating the shaft member 5a relative to the cylinder 1 is connected to the shaft member 5a. The shaft member 5a is rotatably supported by bearings ld, ld.

The discharge pipe 7 protruding from the discharge port 1b is provided with a perforated tube 71 having a large number of holes. The porous tube 71 is further composed of a porous rod portion 71a and a porous tube portion 71b.

As shown in FIG. 4, the porous cylindrical portion 71b has a flange 71-
1 is attached to the discharge pipe 7. The porous rope portion 71a is constructed by attaching a mesh to the entire inner surface of the porous tube portion 71b, and the size of the mesh is sufficiently smaller than the size of the solid material such as a tablet to be conveyed.

The outer periphery of the porous tube 71 is wrapped around the porous tube 71, and a predetermined interval is provided between the outer circumferential surface of the porous tube 71,
Outer cylinder 73 is fixed to the side surface of flange 71-1. An intake pipe 9a of a suction device 9 for sucking air in the exhaust pipe 7 is attached to a part of the outer cylinder 73.

This suction device 9 is constructed by connecting the suction pipe 9a to a suction device 9b, and installing a damper 90 in the middle of the suction pipe 9a to adjust the amount of suction air.

An opening/closing lid 11 is attached to the tip end of the porous cylinder 71 to tightly close the tip end. The opening/closing lid 11 includes
A weight l whose position can be adjusted with a screw so that it opens under the weight of a solid object such as a tablet being conveyed when it reaches a predetermined amount.
la is attached.

Next, the operation of this solid material conveying device will be explained.

By rotating the motor 5c, the rotating brush 5 is rotated and the suction device 9b is turned on. In this state, the opening/closing lid 11 is closed by suction, so air is sucked in from the input hopper 10, and an air flow from the bottom to the top is provided in the cylinder 1.

When a solid substance such as a tablet is introduced from the input hopper 10 in this state, while a force in the circumferential direction is obtained by the rotating brush 5,
It is guided by the side surface of the helical coil 3 and transported toward the discharge port 1b. At this time, since the solid object such as a tablet is given a conveyance force by the air flow in the direction in which the solid object is conveyed, the conveyance of the solid object such as a tablet becomes very smooth. For this reason, brushes and helical brushes for solid objects such as tablets, etc.
The contact of the fill is small and solid objects such as tablets are not abraded more than necessary.

Next, the solid material such as a tablet that is transported through the cylinder 1 and discharged from the discharge port 1b passes over the porous cylinder 71 while sliding. At this time, medicine powder and dirt attached to the surface of solid objects such as tablets should be removed.
It is sucked in by the suction device 9b through the porous rope part 71a and the porous cylinder part 71b, and is discharged.

Next, solid substances such as tablets that have passed through the porous cylinder 71 accumulate in the closed lid 11. As shown in Fig. 5, when a predetermined amount of solid matter has accumulated, the weight of the solid material causes the opening/closing lid 11 to open and close, as shown by the dotted line in the figure. When the amount of solids has been discharged, the weight ll
The opening/closing lid 11 is closed by step a, and the same operation as above is repeated again.

Although the present invention has been described in detail using one embodiment, the present invention is not limited thereto. For example, the tube 1 does not need to be disposed upward, but may be placed sideways, and the porous tube portion 71b By reducing the diameter of the holes, the porous rope portion 71
You can also omit a. Further, the input hopper IC does not necessarily need to be attached, and a pipe for directly transferring solid materials such as tablets may be attached to the input port 1a. Furthermore, the rotating brush 5 is not limited to the shape shown in FIG.
For example, as shown in FIG. 6, the structure may be such that the brush fibers 5b are helically arranged and radially planted.In short, any structure may be used as long as the brush fibers 5b are arranged in a radial manner in cooperation with the helical coil 3. It can also be a shape.

Further, in the above embodiment, the discharge pipe 7 is provided with the perforated cylinder 71 and the outer cylinder 73, and the suction device 9 is attached to the outer cylinder 73.
Although the opening/closing lid 11 is provided at the tip of the discharge pipe 7, the suction device 9 does not necessarily need to be attached to the discharge port 1b side. For example, a fan may be attached to the input port 1a side of the tube 1 to draw air from the input port 1a side. An air flow generating device having a blowing structure may be used, and in short, any type of air flow generating device may be used as long as it provides an air flow in the direction of conveying the solid matter in the cylinder 1.

〔Effect of the invention〕

As explained in detail above, according to the solid material conveying device according to the present invention, since the air flow generation device that generates an air flow in the direction of conveying the solid material in the cylinder is provided, the solid material can be easily transported. As a result, solid objects such as tablets are not polished more than necessary, and the tablets and the like are not unnecessarily reduced in size, and the powder produced by polishing can be greatly reduced, which is an excellent effect.

Further, a perforated cylinder with a large number of holes communicating with the discharge port is provided, and an outer cylinder is provided to enclose the perforated cylinder, and a suction device for sucking the air in the cylinder is attached to the outer cylinder, and the suction device is attached to the outer cylinder. The above-described in-cylinder airflow generating device also has the excellent effect of being able to simultaneously collect chemical powder, dust, etc. adhering to solid objects.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the overall configuration of a solid material conveying device according to the present embodiment, and FIGS. 2(a) and (b). (C) is a diagram showing the cross-sectional shape of the helical coil 3,
3 is a diagram showing the rotating brush 5, FIG. 4 is a partial sectional view showing the porous tube 71 portion of the discharge pipe 7, FIG. 5 is a diagram explaining the operation of the opening/closing lid 11, and FIG. 6 is a diagram showing other 5 is a diagram showing a rotating brush 5. FIG. In the figure, 1... cylinder, 1a... inlet, 1b... outlet, 3... helical coil, 5... rotating brush,
5a... Shaft member, 5b... Brush fiber, 7... Discharge pipe, 71... Porous tube, 73... Outer tube, 9... Suction device, 11... Open/close lid, be.

Claims (3)

[Claims] (1) A helical tube that is wound tightly against the inner wall over its entire length inside a cylindrical tube that has an inlet for introducing solids at one end and an outlet for discharging solids at the other end. A rotary brush in which a coil is disposed and brush fibers are radially implanted on a rod-shaped shaft member is rotatably disposed,
A solid material conveying device that transports solid materials input from an input port toward a discharge port by rotation of the rotating brush,
A solid material conveying device characterized in that an air flow generating device is provided in a cylinder of the solid material conveying device to provide an air flow in the same direction as the solid material conveying direction. (2) Provide a perforated cylinder with a large number of holes that communicates with the discharge port, and provide an outer cylinder that encloses the perforated cylinder, and attach a suction device to the outer cylinder to suck the air inside the cylinder; A solid material conveying device according to claim 1, characterized in that the device is the in-cylinder airflow generating device. (3) The solid material conveyance according to claim (2), characterized in that the tip of the porous tube is provided with an opening/closing lid that opens with the weight of the predetermined solid material discharged from the discharge port. Device.